Pixel Num of a Window 1

[Warrioruw]

Hi all, I want to count the num of pixels in a client area, and I use getClientRect. My question is:

Will (getClientRect.right)* (getClientRect.bottom) be the num of pixels in a client area?

Thanks.

 

[Cagliostro]

in most cases yes, but it could deppend on how client coordinates are organized.

Ion Filipski

 

[Warrioruw]

if possible, give an example to illustrate the exception when coordinates are organized differently from the most cases.

 

[Cagliostro]

I believe at the first you should learn what is window organization. Look at the function SetWindowOrg.
If window organization is ohter than the screen organization then you should convert the (0, 0) and (right, bottom) points from window client coordinates to screen coordinates by using ClientToScreen and then calculate the number of pixels.

Ion Filipski