Started writing a test program for DwmEnableBlurBehind() for sidebars. This is gonna be a LOT of work...
This commit is contained in:
Pietro Gagliardi
parent
0264ea9905
commit
17f9a5eff5
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// 31 august 2019
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#define UNICODE
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#define _UNICODE
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#define STRICT
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#define STRICT_TYPED_ITEMIDS
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#define WINVER 0x0600 /* from Microsoft's winnls.h */
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#define _WIN32_WINNT 0x0600
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#define _WIN32_WINDOWS 0x0600 /* from Microsoft's pdh.h */
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#define _WIN32_IE 0x0700
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#define NTDDI_VERSION 0x06000000
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#include <windows.h>
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#include <commctrl.h>
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#include <uxtheme.h>
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#include <vsstyle.h>
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#include <vssym32.h>
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#include <windowsx.h>
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#include <dwmapi.h>
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#include <stdio.h>
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#include <stdlib.h>
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// cl windwmblurbehindtest.cpp -MT -link user32.lib kernel32.lib gdi32.lib comctl32.lib uxtheme.lib msimg32.lib dwmapi.lib windows.res
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void diele(const char *func)
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{
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DWORD le;
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le = GetLastError();
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fprintf(stderr, "%s: %I32u\n", func, le);
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exit(EXIT_FAILURE);
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}
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void diehr(const char *func, HRESULT hr)
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{
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fprintf(stderr, "%s: 0x%08I32X\n", func, hr);
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exit(EXIT_FAILURE);
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}
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// TODO if we merge this into libui proper, this will need to be deduplicated
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static inline HRESULT lastErrorToHRESULT(DWORD lastError)
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{
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if (lastError == 0)
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return E_FAIL;
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return HRESULT_FROM_WIN32(lastError);
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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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HBRUSH opaquebrush;
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#define OURWIDTH 320
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#define OURHEIGHT 240
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void onWM_CREATE(HWND hwnd)
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{
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DWM_BLURBEHIND dbb;
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HRESULT hr = S_OK;
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rgn = CreateRectRgn(0, 0, OURWIDTH / 2, OURHEIGHT);
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if (rgn == NULL)
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diele("CreateRectRgn()");
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ZeroMemory(&dbb, sizeof (DWM_BLURBEHIND));
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dbb.dwFlags = DWM_BB_ENABLE | DWM_BB_BLURREGION;
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dbb.fEnable = TRUE;
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dbb.hRgnBlur = NULL;//rgn;
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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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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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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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}
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void onWM_PAINT(HWND hwnd)
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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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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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r.right = OURWIDTH;
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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=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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EndPaint(hwnd, &ps);
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}
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LRESULT CALLBACK wndproc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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switch (uMsg) {
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case WM_CREATE:
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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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break;
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case WM_CLOSE:
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PostQuitMessage(0);
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break;
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}
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return DefWindowProcW(hwnd, uMsg, wParam, lParam);
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}
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EXTERN_C IMAGE_DOS_HEADER __ImageBase;
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int main(int argc, char *argv[])
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{
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STARTUPINFOW si;
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int nCmdShow;
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INITCOMMONCONTROLSEX icc;
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HICON hDefaultIcon;
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HCURSOR hDefaultCursor;
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DWORD dwStyle, dwExStyle;
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RECT r;
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WNDCLASSW wc;
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HWND mainwin;
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MSG msg;
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HRESULT hr;
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hInstance = (HINSTANCE) (&__ImageBase);
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nCmdShow = SW_SHOWDEFAULT;
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GetStartupInfoW(&si);
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if ((si.dwFlags & STARTF_USESHOWWINDOW) != 0)
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nCmdShow = si.wShowWindow;
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ZeroMemory(&icc, sizeof (INITCOMMONCONTROLSEX));
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icc.dwSize = sizeof (INITCOMMONCONTROLSEX);
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icc.dwICC = ICC_STANDARD_CLASSES | ICC_BAR_CLASSES | ICC_COOL_CLASSES;
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if (InitCommonControlsEx(&icc) == 0)
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diele("InitCommonControlsEx()");
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hDefaultIcon = LoadIconW(NULL, IDI_APPLICATION);
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if (hDefaultIcon == NULL)
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diele("LoadIconW(IDI_APPLICATION)");
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hDefaultCursor = LoadCursorW(NULL, IDC_ARROW);
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if (hDefaultCursor == NULL)
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diele("LoadCursorW(IDC_ARROW)");
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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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wc.hInstance = hInstance;
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wc.hIcon = hDefaultIcon;
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wc.hCursor = hDefaultCursor;
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wc.hbrBackground = (HBRUSH) (COLOR_BTNFACE + 1);
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if (RegisterClassW(&wc) == 0)
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diele("RegisterClassW()");
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dwStyle = WS_OVERLAPPEDWINDOW & ~(WS_THICKFRAME | WS_MAXIMIZEBOX);
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dwExStyle = 0;
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r.left = 0;
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r.top = 0;
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r.right = OURWIDTH;
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r.bottom = OURHEIGHT;
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if (AdjustWindowRectEx(&r, dwStyle, FALSE, dwExStyle) == 0)
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diele("AdjustWindowRectEx()");
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mainwin = CreateWindowExW(dwExStyle,
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L"mainwin", L"Main Window",
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dwStyle,
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CW_USEDEFAULT, CW_USEDEFAULT,
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r.right - r.left, r.bottom - r.top,
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NULL, NULL, hInstance, NULL);
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if (mainwin == NULL)
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diele("CreateWindowExW(L\"mainwin\")");
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ShowWindow(mainwin, nCmdShow);
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if (UpdateWindow(mainwin) == 0)
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diele("UpdateWindow()");
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for (;;) {
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int res;
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res = GetMessageW(&msg, NULL, 0, 0);
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if (res < 0)
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diele("GetMessageW()");
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if (res == 0)
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break;
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if (IsDialogMessageW(mainwin, &msg) == 0) {
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TranslateMessage(&msg);
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DispatchMessageW(&msg);
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}
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}
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return 0;
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}
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