Hi there,

I just returned to 3DGS after a couple of years and Lite-C is quite new to me. The best way for me to learn a new programming language is to solve simple tasks, but the one I gave myself now is not quite that simple to me, so I'm asking for help.

I'm trying to use an API-Call to read the first available screen resolution using "EnumDisplaySettings". After a little research I found out that I have to define a structure to contain the returned values of this call. Trouble is, that I don't know how to access the returned values, so I'd appreciate any help.

This is my code so far:

Code:
#include <acknex.h>  // Pure-Mode
#include <default.c> // Standard-Keys
#include <windows.h> // Windows-API-Calls

typedef struct _devicemode {
  DWORD dmBitsPerPel;
  DWORD dmPelsWidth;
  DWORD dmPelsHeight;
  DWORD dmDisplayFlags;
  DWORD dmDisplayFrequency;
} SCRMODE;

STRING* rvalue = "Test";

TEXT* doutput =
{
	pos_x = 50;
	pos_y = 50;
	layer = 1;
	string (rvalue);
	flags = VISIBLE;
}

void main() 
{
	var rvalue;

	d3d_antialias = 1;
	video_mode = 8;
	video_screen = 2;
	wait(1);
	level_load(_str("title.wmb"));
	SCRMODE* resolution;
	rvalue = EnumDisplaySettings(NULL, 0, resolution);	
}


So far I don't get any errors, but I don't really know how to put the return value "rvalue" or the members of "resolution" to use. What I like to do is to display rvalue in doutput.string and after a couple of frames to display the given resolution in the same panel in the format "width x height" (e.g. 800x600).

How could I accomplish this. I hope my problem is understandable.

Thanks in advance,

Patrick

PS: I know that EnumDisplaySettings uses a structure with more values of the DEVMODE-Type, but only the five given values are used by EnumDisplaySettings, so I figured that defining only those five needed members should be enough.

Last edited by Vorick; 02/18/09 10:35.
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