How to Get and Set the System Resolution using C#

[abdul_rp]

Hi,



Can any one guide me how to Get and Set the Screen Resolution using C# in Runtime .



Regards,

AR

[abdul_rp]

I found the solution for getting the screen resolution, But how to set in Runtime?



var d = Sys["Desktop"];

ShowMessage(d["Height"]);

ShowMessage(d["Width"]);

[karkadil]

Hi,



AFAIK, there is no simple way to do this in TestComplete.



As a workaround, you can download a simple command line utility here and then run it from TestComplete like this



Sys.OleObject("WScript.Shell").Run("C:\\chscrres.exe 800 600");

[AlexKaras]

Hi Abdul,



See also http://www.automatedqa.com/support/viewarticle.aspx?aid=8962

[abdul_rp]

Hi,

Following code is not changing the system Resolution , can you let me what could be the problem with the code.

function SetDisplay(x,y,d)

{

var dm, dwLastError;

res = -1;

dm = Win32API["DEVMODE"]();

if(Win32API["EnumDisplaySettings"](VarToInteger(0), -1, dm) != 0)

{

dm["dmPelsWidth"] = x;

dm["dmPelsHeight"] = y;

dm["dmBitsPerPel"] = d;

res = Win32API["ChangeDisplaySettings"](dm, 0);

}

else

{

dwLastError = Win32API["GetLastError"]();

Log["Error"]("Error code: " + VarToStr(dwLastError));

}

return res

}

function TestSetDisplay()

{ 

// SetDisplay(1024, 768, 32);

//

// Log["Message"]("New resolution: " + VarToStr(Sys["Desktop"]["Width"]) +

//

// "x"+VarToStr(Sys["Desktop"]["Height"]));

//Delay(2000);

SetDisplay(1280, 1024, 64);

Log["Message"]("New resolution: " + VarToStr(Sys["Desktop"]["Width"]) +

"x"+VarToStr(Sys["Desktop"]["Height"]));

}

[AlexKaras]

Hi Abdul,



Just a quick guess: are you sure that 64 bits/pixel is a correct value for the color depth?

(This is in the SetDisplay(1280, 1024, 64); line.)

Shouldn't it be 32 instead of 64? Or you are using 64-bit OS?

[abdul_rp]

Hi Alex,



Even i have tried with 32 Bit , Here also it is not working.



Regards,

Abdul

[abdul_rp]

Alex,



Thanks . I got the solution. It should be  32 Bit as I am working 32 Bit OS.



Regards,

Abdul