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DrawThemeTextEx always draws white on windows 10 when drawn on the frame, or no text drawn at all!!!
Here's the code:
RECT rcClient;
GetClientRect(hWnd, &rcClient);
HTHEME hTheme = OpenThemeData(NULL, L"CompositedWindow::Window");
if (hTheme)
{
HDC hdcPaint = CreateCompatibleDC(hdc);
if (hdcPaint)
{
int cx = RECTWIDTH(rcClient);
int cy = RECTHEIGHT(rcClient);
BITMAPINFO dib = { 0 };
dib.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
dib.bmiHeader.biWidth = cx;
dib.bmiHeader.biHeight = -cy;
dib.bmiHeader.biPlanes = 1;
dib.bmiHeader.biBitCount = 48;
dib.bmiHeader.biCompression = BI_RGB;
HBITMAP hbm = CreateDIBSection(hdc, &dib, DIB_RGB_COLORS, NULL, NULL, 0);
if (hbm)
{
HBITMAP hbmOld = (HBITMAP)SelectObject(hdcPaint, hbm);
DTTOPTS DttOpts = { sizeof(DTTOPTS) };
DttOpts.dwFlags = DTT_COMPOSITED | DTT_GLOWSIZE;
DttOpts.iGlowSize = 15;
LOGFONT lgFont;
HFONT hFontOld = NULL;
if (SUCCEEDED(GetThemeSysFont(hTheme, TMT_CAPTIONFONT, &lgFont)))
{
HFONT hFont = CreateFontIndirect(&lgFont);
hFontOld = (HFONT)SelectObject(hdcPaint, hFont);
}
RECT rcPaint = rcClient;
rcPaint.top += 8;
rcPaint.right -= 125;
rcPaint.left += 8;
rcPaint.bottom = 50;
DrawThemeTextEx(hTheme,
hdcPaint,
0, 0,
szTitle,
-1,
DT_LEFT | DT_WORD_ELLIPSIS,
&rcPaint,
&DttOpts);
BitBlt(hdc, 0, 0, cx, cy, hdcPaint, 0, 0, SRCCOPY);
SelectObject(hdcPaint, hbmOld);
if (hFontOld)
{
SelectObject(hdcPaint, hFontOld);
}
}
}
}
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