Windows Get Screen Resolution in C

Question

Using plain C, (not C++ / C# / Objective-C) how do I get the screen resolution in Windows?

My compiler is MingW (not sure if relevant). All solutions I have found online are for C++ or some other C variant.

Answer 1

Use GetSystemMetrics()

DWORD dwWidth = GetSystemMetrics(SM_CXSCREEN);
DWORD dwHeight = GetSystemMetrics(SM_CYSCREEN);

Answer 2

You'll have to use the Windows API by including windows.h in your code. MingW may already come with this header file.

#include <windows.h>

void GetMonitorResolution(int *horizontal, int *vertical) {
    *height = GetSystemMetrics(SM_CYSCREEN);
    *width = GetSystemMetrics(SM_CXSCREEN);
}