The following example sets the text rendering hint to two different values and draws text to demonstrate each value.
C++
VOID Example_SetTextRenderingHint(HDC hdc)
{
Graphics graphics(hdc);
// Set the text rendering hint to TextRenderingHintSingleBitPerPixel.
graphics.SetTextRenderingHint(TextRenderingHintSingleBitPerPixel);
// Draw text.
graphics.DrawString(
L"Low quality rendering",
21,
&Font(L"Arial", 24),
PointF(0, 0),
&SolidBrush(Color(255, 0, 0, 0)));
// Get the text rendering hint.
TextRenderingHint hint = graphics.GetTextRenderingHint();
// Set the text rendering hint to TextRenderingHintAntiAlias.
graphics.SetTextRenderingHint(TextRenderingHintAntiAlias);
// Draw more text to demonstrate the difference.
graphics.DrawString(
L"High quality rendering",
22,
&Font(L"Arial", 24),
PointF(0, 50),
&SolidBrush(Color(255, 0, 0, 0)));
}
SUB GDIP_SetTextRenderingHint (BYVAL hdc AS DWORD)
LOCAL hStatus AS LONG
LOCAL pGraphics AS DWORD
LOCAL pPen AS DWORD
LOCAL pFont AS DWORD
LOCAL pFontFamily AS DWORD
LOCAL pFormat AS DWORD
LOCAL pBrush AS DWORD
LOCAL strFontName AS STRING
LOCAL strText AS STRING
LOCAL rcf AS RECTF
hStatus = GdipCreateFromHDC(hdc, pGraphics)
' // Set the text rendering hint to TextRenderingHintSingleBitPerPixel.
hStatus = GdipSetTextRenderingHint(pGraphics, %TextRenderingHintSingleBitPerPixel)
' // Create the font
strFontName = UCODE$("Arial")
hStatus = GdipCreateFontFamilyFromName(STRPTR(strFontName), %NULL, pFontFamily)
IF hStatus = %StatusOk AND pFontFamily <> %NULL THEN
hStatus = GdipCreateFont(pFontFamily, 24, %FontStyleRegular, %UnitPoint, pFont)
GdipDeleteFontFamily(pFontFamily)
END IF
' Note: You can use the wrapper function GdiPlusCreateFontFromName to create the font:
' hStatus = GdiPlusCreateFontFromName("Arial", 24, %FontStyleRegular, %UnitPoint, pFont)
' // Create a solid brush
hStatus = GdipCreateSolidFill(GDIP_ARGB(255, 0, 0, 0), pBrush)
' // Draw text
strText = UCODE$("Low quality rendering")
hStatus = GdipDrawString(pGraphics, STRPTR(strText), LEN(strText) \ 2, pFont, rcf, pFormat, pBrush)
' // Set the text rendering hint to TextRenderingHintAntiAlias.
hStatus = GdipSetTextRenderingHint(pGraphics, %TextRenderingHintAntiAlias)
' // Draw more text to demonstrate the difference.
strText = UCODE$("High quality rendering")
rcf.y = 50
hStatus = GdipDrawString(pGraphics, STRPTR(strText), LEN(strText) \ 2, pFont, rcf, pFormat, pBrush)
' // Cleanup
IF pFont THEN GdipDeleteFont(pFont)
IF pPen THEN GdipDeletePen(pPen)
IF pBrush THEN GdipDeleteBrush(pBrush)
IF pFormat THEN GdipDeleteStringFormat(pFormat)
IF pGraphics THEN GdipDeleteGraphics(pGraphics)
END SUB
(http://www.jose.it-berater.org/captures/GdipSetTextRenderingHint.png)