how to know width and height of windows desktop client area?

Question

any one know what command at windows sdk that give information about windows desktop client area (width and height without the bar). or if there is no one know, is anyone know the technic to gather it

Answer 1

use the GetSystemMetrics() API.
basically its:

int Width = GetSystemMetrics(SM_CXSCREEN);
int Height = GetSystemMetrics(SM_CYSCREEN);