Quote:

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...dllfunction ... not find in DLL...

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dll not in memory, i think.
-check where you placed it (plugin folder / your root folder of published game);
-check c-script (correct names, etc.);
-check last update of DX9.0c;

//-------------------------- WDL code -----------------------------
//2005 by LionTs.
//Free for all 3DGS community. Just send me $1000 per one game start.
//Ok, it's my another stupid joke :)
//Correct gamma ramp for FULLSCREEN mode.
//	I'm trying to implement gammaramp in windowed mode thru GetDeviceGammaRamp,
//	but I think it's useless.
//It's just an example, try to modify formula for gamma ramp arrays,
//You'll see intresting usefull effects.
//////////all code is working, I'm using this stuff in my game project
//function for simple gamma manipulation like overall brightness or color splash

	dllfunction set_gamma(var,var,var);	//red green blue: 0 - ~3.5, change overall brightness if all are equal
	//functions for advansed effects like color inverted vision
	dllfunction get_gamma_ramp(&var,&var,&var);	//arrays of gamma ramp values: 0-65536
	dllfunction set_gamma_ramp(&var,&var,&var);	//arrays of gamma ramp values: 0-65536	

var gr_red[256];
var gr_green[256];
var gr_blue[256];
var br_gamma=1.0;
//example for overall brightness correction
//PGUP & PGDN change it ingame
function gamma_correct
{
	while(player == null){wait(1);}
	var i=0;
	get_gamma_ramp(gr_red,gr_green,gr_blue);	//fill arrays with current gamma ramp
	while(1)
	{
		if (key_any)
		{
			br_gamma+=time*0.1;
			br_gamma=min(br_gamma,2.0);
		}
		else
		{
			if(key_pgdn)
			{
			br_gamma-=time*0.1;
			br_gamma=max(br_gamma,0.5);
			}			
		}
		i=0;			
		while(i<256)//calculate values for gamma ramp
		{
			gr_red[i]=pow(i/256.0,1/br_gamma)*65536;
			gr_green[i]=pow(i/256.0,1/br_gamma)*65536;
			gr_blue[i]=pow(i/256.0,1/br_gamma)*65536;
			/*
			//try this, for example				
			gr_red[i]=pow((256.0-i)/256.0,1/br_gamma)*65536;
			gr_green[i]=pow((256.0-i)/256.0,1/br_gamma)*65536;
			gr_blue[i]=pow((256.0-i)/256.0,1/br_gamma)*65536;
			*/
			i+=1;
		}

		set_gamma_ramp(gr_red,gr_green,gr_blue);	//commit new gamma ramp
	}		
	wait(1);
}
//END of GAMMA_CORRECT()