Нужно создать иконку (HICON) и отобразить её в трее.
Значок получаю так: (взято http://support.microsoft.com/kb/318876/en-us)
| Код |
HICON CreateAlphaIcon(void)
{
DWORD dwWidth = 32, dwHeight = 32;
BITMAPV5HEADER bi;
void *lpBits;
ZeroMemory(&bi,sizeof(BITMAPV5HEADER));
bi.bV5Size = sizeof(BITMAPV5HEADER);
bi.bV5Width = dwWidth;
bi.bV5Height = dwHeight;
bi.bV5Planes = 1;
bi.bV5BitCount = 32;
bi.bV5Compression = BI_BITFIELDS;
// The following mask specification specifies a supported 32 BPP
// alpha format for Windows XP.
bi.bV5RedMask = 0x00FF0000;
bi.bV5GreenMask = 0x0000FF00;
bi.bV5BlueMask = 0x000000FF;
bi.bV5AlphaMask = 0xFF000000;
HDC hdc = GetDC(NULL);
// Create the DIB section with an alpha channel.
HBITMAP hBitmap = CreateDIBSection(hdc, (BITMAPINFO *)&bi, DIB_RGB_COLORS,
(void **)&lpBits, NULL, (DWORD)0);
HDC hMemDC = CreateCompatibleDC(hdc);
ReleaseDC(NULL,hdc);
// Draw something on the DIB section.
HBITMAP hOldBitmap = (HBITMAP)SelectObject(hMemDC, hBitmap);
PatBlt(hMemDC,0,0,dwWidth,dwHeight,WHITENESS);
SetTextColor(hMemDC,RGB(0,0,0));
SetBkMode(hMemDC,TRANSPARENT);
TextOut(hMemDC,0,9,"rgba",4);
SelectObject(hMemDC, hOldBitmap);
DeleteDC(hMemDC);
// Create an empty mask bitmap.
HBITMAP hMonoBitmap = CreateBitmap(dwWidth,dwHeight,1,1,NULL);
// Set the alpha values for each pixel in the cursor so that
// the complete cursor is semi-transparent.
DWORD *lpdwPixel;
lpdwPixel = (DWORD *)lpBits;
for (DWORD x=0;x<dwWidth;x++)
for (DWORD y=0;y<dwHeight;y++)
{
// Clear the alpha bits
*lpdwPixel &= 0x00FFFFFF;
// Set the alpha bits to 0x9F (semi-transparent)
*lpdwPixel |= 0x9F000000;
lpdwPixel++;
}
ICONINFO ii;
ii.fIcon = TRUE; // Change fIcon to TRUE to create an alpha icon
ii.xHotspot = 0;
ii.yHotspot = 0;
ii.hbmMask = hMonoBitmap;
ii.hbmColor = hBitmap;
// Create the alpha icon with the alpha DIB section.
HICON hAlphaIcon = CreateIconIndirect(&ii);
DeleteObject(hBitmap);
DeleteObject(hMonoBitmap);
return hAlphaIcon;
}
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на выходе получается иконка с серым фоном и чёрным текстом, в чём проблема? |
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