How to create DC with specific resolution?

[Roger Allen]

This should do what you need, at a first attempt (not tested)

 int dpiX = dc.GetDeviceCaps(LOGPIXELSX);
 int dpiY = dc.GetDeviceCaps(LOGPIXELSY);

 double xScale = requiredDpi / dpiX;
 double yScale = requiredDpi / dpiY;

 XFORM format;
 format.eM11 = xScale;
 format.eM12 = 0.0;
 format.eM21 = 0.0;
 format.eM22 = yScale;

 SetWorldTransform(dc.GetSfaeHdc(), &format);

[ryu]

Hi RogerAllen,

Thanks again for the help

I have tested your code and the quality of the image is still the same with 96dpi. What I really want to achive is to get the bitmap contains 200dots per inch instead of 96dots per inch.

Do you think it is possible? I am really stuck. Please help...

Thanks for any help again, in advance.

Cheers