/* Fills the specified buffer with the metrics for the currently selected font. */
internal static int GetTextMetrics(HandleRef hDC, ref NativeMethods.TEXTMETRIC lptm)
{
if (Marshal.SystemDefaultCharSize != 1)
{
// Handle Unicode
return(SafeNativeMethods.GetTextMetricsW(hDC, out lptm));
}
// Handle ANSI; call GetTextMetricsA and translate to Unicode struct
NativeMethods.TEXTMETRICA tEXTMETRICA = new NativeMethods.TEXTMETRICA();
int result = SafeNativeMethods.GetTextMetricsA(hDC, out tEXTMETRICA);
lptm.tmHeight = tEXTMETRICA.tmHeight;
lptm.tmAscent = tEXTMETRICA.tmAscent;
lptm.tmDescent = tEXTMETRICA.tmDescent;
lptm.tmInternalLeading = tEXTMETRICA.tmInternalLeading;
lptm.tmExternalLeading = tEXTMETRICA.tmExternalLeading;
lptm.tmAveCharWidth = tEXTMETRICA.tmAveCharWidth;
lptm.tmMaxCharWidth = tEXTMETRICA.tmMaxCharWidth;
lptm.tmWeight = tEXTMETRICA.tmWeight;
lptm.tmOverhang = tEXTMETRICA.tmOverhang;
lptm.tmDigitizedAspectX = tEXTMETRICA.tmDigitizedAspectX;
lptm.tmDigitizedAspectY = tEXTMETRICA.tmDigitizedAspectY;
lptm.tmFirstChar = Convert.ToChar(tEXTMETRICA.tmFirstChar);
lptm.tmLastChar = Convert.ToChar(tEXTMETRICA.tmLastChar);
lptm.tmDefaultChar = Convert.ToChar(tEXTMETRICA.tmDefaultChar);
lptm.tmBreakChar = Convert.ToChar(tEXTMETRICA.tmBreakChar);
lptm.tmItalic = tEXTMETRICA.tmItalic;
lptm.tmUnderlined = tEXTMETRICA.tmUnderlined;
lptm.tmStruckOut = tEXTMETRICA.tmStruckOut;
lptm.tmPitchAndFamily = tEXTMETRICA.tmPitchAndFamily;
lptm.tmCharSet = tEXTMETRICA.tmCharSet;
return(result);
}
private static extern int GetTextMetricsA(HandleRef hDC, out NativeMethods.TEXTMETRICA lptm);
