Custom units of measurement

Question

User-80781307 posted

Hello...

I have a question about custom units of measurement.  I want to use GDI+ because I will have to draw vector objects and plain old GDI won't cut it.  I am writing software for hardware which basically uses measurements that aren't typical (the measurements are 5000/12 == 1 inch).  So, is there a way to use SetPageUnit() to use my custom measurement?  If not, how would I accomplish this?  This code works for me, but it's GDI, not GDI+:

	static const float INCH = 5000.0f/12.0f;
	CRect rc;
	GetClientRect(&rc);
	dc.SetMapMode(MM_ISOTROPIC);
	dc.SetViewportOrg(0, 0);
	dc.SetWindowExt(INCH*12, INCH*12);
	dc.SetViewportExt(rc.Width(), rc.Height());
	dc.TextOut(INCH*2,INCH*5,"Hello World");

This would draw "Hello World" at 2",5" perfectly.  I noticed that if i run this code, then attach a Graphics object to the CDC it keeps the units, but i don't know if that is the proper way to do this in GDI+, which is why i am here!

Thanks for any tips!

-andy.