More progress with the DWM blur-behind stuff. This is increasingly complicated; I can get rid of the alpha-blending OR keep the Aero animations...
This commit is contained in:
Pietro Gagliardi
parent
5c65e6d7fa
commit
6801cf5282
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@ -43,6 +43,65 @@ static inline HRESULT lastErrorToHRESULT(DWORD lastError)
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return HRESULT_FROM_WIN32(lastError);
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}
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static void paintIntoBuffer(HWND hwnd, UINT uMsg, HDC dc, RECT *r)
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{
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HPAINTBUFFER bbuf;
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HDC bdc;
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HRESULT hr;
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// TODO begin check errors
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bbuf = BeginBufferedPaint(dc, r, BPBF_TOPDOWNDIB, NULL, &bdc);
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if (uMsg == WM_PAINT)
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SendMessageW(hwnd, WM_PRINTCLIENT, (WPARAM) bdc, PRF_CLIENT | PRF_ERASEBKGND);
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else
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SendMessageW(hwnd, WM_PRINT, (WPARAM) bdc, PRF_ERASEBKGND | PRF_NONCLIENT);
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hr = BufferedPaintSetAlpha(bbuf, NULL, 255);
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hr = EndBufferedPaint(bbuf, TRUE);
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// TODO end check errors
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}
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static LRESULT CALLBACK buttonSubProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam, UINT_PTR uIdSubclass, DWORD_PTR dwRefData)
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{
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PAINTSTRUCT ps;
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HDC dc;
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RECT r;
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switch (uMsg) {
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case WM_PAINT:
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// TODO begin check errors
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#if 0
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dc = BeginPaint(hwnd, &ps);
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// paintIntoBuffer(hwnd, uMsg, dc, &(ps.rcPaint));
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DefSubclassProc(hwnd, uMsg, (WPARAM) dc, lParam);
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EndPaint(hwnd, &ps);
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#else
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DefSubclassProc(hwnd, uMsg, wParam, lParam);
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if (0) {
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RECT r;
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GetClientRect(hwnd, &r);
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MapWindowRect(hwnd, GetParent(hwnd), &r);
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InvalidateRect(GetParent(hwnd), &r, TRUE);
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}
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#endif
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// TODO end check errors
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return 0;
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//TODO case WM_NCPAINT:
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// TODO begin check errors
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dc = GetDCEx(hwnd, (HRGN) wParam, DCX_WINDOW | DCX_INTERSECTRGN);
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GetRgnBox((HRGN) wParam, &r);
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paintIntoBuffer(hwnd, uMsg, dc, &r);
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ReleaseDC(hwnd, dc);
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// TODO end check errors
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return 0;
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case WM_NCDESTROY:
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if (RemoveWindowSubclass(hwnd, buttonSubProc, uIdSubclass) == FALSE)
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diele("RemoveWindowSubclass()");
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break;
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}
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return DefSubclassProc(hwnd, uMsg, wParam, lParam);
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}
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HINSTANCE hInstance;
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HRGN rgn;
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BOOL created = FALSE;
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@ -66,30 +125,30 @@ void onWM_CREATE(HWND hwnd)
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hr = DwmEnableBlurBehindWindow(hwnd, &dbb);
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if (hr != S_OK)
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diehr("DwmEnableBlurBehindWindow()", hr);
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CreateWindowExW(0,
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HWND w1=CreateWindowExW(0,
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L"BUTTON",L"Hello",
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WS_CHILD|WS_VISIBLE|BS_PUSHBUTTON,
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3*OURWIDTH/4,150,
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OURWIDTH/6,25,
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hwnd,NULL,hInstance,NULL);
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SetWindowTheme(CreateWindowExW(0,
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//SetWindowSubclass(w1, buttonSubProc, 0, 0);
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HWND w2=CreateWindowExW(0,
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L"BUTTON",L"Hello",
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WS_CHILD|WS_VISIBLE|BS_PUSHBUTTON,
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3*OURWIDTH/4,200,
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OURWIDTH/6,25,
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hwnd,NULL,hInstance,NULL),L"",L"");
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hwnd,NULL,hInstance,NULL);
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SetWindowTheme(w2,L"",L"");
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//SetWindowSubclass(w2, buttonSubProc, 0, 0);
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}
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void onWM_PAINT(HWND hwnd)
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void doPaint(HWND hwnd, HDC dc, RECT *rcPaint)
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{
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HDC dc;
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PAINTSTRUCT ps;
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RECT r;
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RECT r, r2;
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HPAINTBUFFER bbuf;
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HDC bdc;
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HRESULT hr;
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ZeroMemory(&ps, sizeof (PAINTSTRUCT));
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dc = BeginPaint(hwnd, &ps);
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if (dc == NULL)
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diele("BeginPaint()");
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// First, fill with BLACK_BRUSH to satisfy the DWM
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r.left = 0;
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r.top = 0;
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@ -97,29 +156,49 @@ void onWM_PAINT(HWND hwnd)
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r.bottom = OURHEIGHT;
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// TODO check error
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FillRect(dc, &r, (HBRUSH) GetStockObject(BLACK_BRUSH));
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static DWORD c=GetSysColor(COLOR_BTNFACE);
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BYTE x[4];
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x[3]=0xFF;
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x[2]=GetRValue(c);
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x[1]=GetGValue(c);
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x[0]=GetBValue(c);
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static HBITMAP b=CreateBitmap(1,1,1,32,x);
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if(b==NULL)diele("CreateBitmap()");
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HDC dc2=CreateCompatibleDC(dc);
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if(dc==NULL)diele("CreateCompatibleDC()");
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HGDIOBJ prev=SelectObject(dc2,b);
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StretchBlt(dc,OURWIDTH/2,0,OURWIDTH/2,OURHEIGHT,
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dc2,0,0,1,1,SRCCOPY);
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SelectObject(dc2,prev);
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DeleteDC(dc2);
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DeleteObject(b);
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r.left = OURWIDTH / 2;
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// TODO check error
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IntersectRect(&r2, &r, rcPaint);
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bbuf = BeginBufferedPaint(dc, &r, BPBF_TOPDOWNDIB, NULL, &bdc);
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if (bbuf == NULL)
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diele("BeginBufferedPaint()");
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// TODO start check errors
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FillRect(bdc, &r, GetSysColorBrush(COLOR_BTNFACE));
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r.left = 3 * OURWIDTH / 4;
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r.top = 100;
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r.right = 7 * OURWIDTH / 8;
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r.bottom = 25;
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auto m=SetBkMode(dc,TRANSPARENT);
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TextOutW(dc,r.left,r.top,L"Hello",5);
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SetBkMode(dc, m);
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auto m = SetBkMode(bdc,TRANSPARENT);
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TextOutW(bdc, r.left, r.top, L"Hello", 5);
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SetBkMode(bdc, m);
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// TODO end check errors
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hr = BufferedPaintSetAlpha(bbuf, NULL, 255);
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if (hr != S_OK)
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diehr("BufferedPaintSetAlpha()", hr);
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hr = EndBufferedPaint(bbuf, TRUE);
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if (hr != S_OK)
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diehr("EndBufferedPaint()", hr);
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}
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void onWM_PAINT(HWND hwnd, WPARAM wParam)
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{
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HDC dc;
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PAINTSTRUCT ps;
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RECT rcPaint;
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if (wParam != 0) {
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// TODO check errors
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GetClientRect(hwnd, &rcPaint);
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doPaint(hwnd, (HDC) wParam, &rcPaint);
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return;
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}
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ZeroMemory(&ps, sizeof (PAINTSTRUCT));
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dc = BeginPaint(hwnd, &ps);
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if (dc == NULL)
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diele("BeginPaint()");
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doPaint(hwnd, dc, &(ps.rcPaint));
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EndPaint(hwnd, &ps);
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}
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@ -130,7 +209,9 @@ LRESULT CALLBACK wndproc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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onWM_CREATE(hwnd);
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break;
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case WM_PAINT:
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onWM_PAINT(hwnd);
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// case WM_PRINTCLIENT:
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// case WM_ERASEBKGND:
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onWM_PAINT(hwnd, wParam);
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break;
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case WM_CLOSE:
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PostQuitMessage(0);
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@ -174,6 +255,10 @@ int main(int argc, char *argv[])
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if (hDefaultCursor == NULL)
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diele("LoadCursorW(IDC_ARROW)");
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hr = BufferedPaintInit();
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if (hr != S_OK)
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diehr("BufferedPaintInit()", hr);
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ZeroMemory(&wc, sizeof (WNDCLASSW));
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wc.lpszClassName = L"mainwin";
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wc.lpfnWndProc = wndproc;
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@ -218,5 +303,6 @@ int main(int argc, char *argv[])
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DispatchMessageW(&msg);
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}
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}
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BufferedPaintUnInit();
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return 0;
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}
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@ -0,0 +1,14 @@
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http://www.danielmoth.com/Blog/Vista-Glass-Answers-And-DwmEnableBlurBehindWindow.aspx
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https://weblogs.asp.net/kennykerr/Windows-Vista-for-Developers-_1320_-Part-3-_1320_-The-Desktop-Window-Manager
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https://stackoverflow.com/questions/7981322/strategy-for-creating-a-layered-window-with-child-windows-controls
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https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-printwindow
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http://www.danielmoth.com/Blog/glass-nugget.aspx
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https://weblogs.asp.net/kennykerr/controls-and-the-desktop-window-manager
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https://docs.microsoft.com/en-us/windows/win32/api/uxtheme/nf-uxtheme-bufferedpaintinit
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https://docs.microsoft.com/en-us/windows/win32/api/uxtheme/nf-uxtheme-beginbufferedpaint
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https://docs.microsoft.com/en-us/windows/win32/api/uxtheme/nf-uxtheme-bufferedpaintsetalpha
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https://docs.microsoft.com/en-us/windows/win32/api/uxtheme/nf-uxtheme-endbufferedpaint
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https://docs.microsoft.com/en-us/windows/win32/api/uxtheme/nf-uxtheme-bufferedpaintuninit
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https://weblogs.asp.net/kennykerr/Windows-Vista-for-Developers-_1320_-Part-1-_1320_-Aero-Wizards
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https://weblogs.asp.net/kennykerr/Windows-Vista-for-Developers-_1320_-Part-2-_1320_-Task-Dialogs-in-Depth
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https://weblogs.asp.net/kennykerr/Windows-Vista-for-Developers-_1320_-Part-6-_1320_-The-New-File-Dialogs
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