Forum Discussion

KateIV's avatar
KateIV
New Member
4 years ago
Solved

Region iImage Comparison Fails by color depth

Hi,   I am running tests on a VM using TestExecute. Snapshots (regions) make by TestComplete not on VM. All time was all good, but recently (maybe new version of TestComplete, maybe updates on ...
  • anupamchampati's avatar
    anupamchampati
    4 years ago

    Attached the sample code to change the resolution and color depth , please let me know if you need any help in configuration. I tried it very long back in one of my projects so not tried it on the latest version.

    function Test()
    {
    SetDisplay(800, 600, 32);
    }

    // The function changes the display settings:
    // x - resolution
    // y - resolution
    // d - color depth
    function SetDisplay(x, y, d)
    {
    var dm = Win32API.DEVMODE();
    if(0 < Win32API.EnumDisplaySettings(0, -1, dm)) {
    dm.dmPelsWidth = x;
    dm.dmPelsHeight = y;
    dm.dmBitsPerPel = d;

    var res = Win32API.ChangeDisplaySettings(dm, 0);
    if(res == DISP_CHANGE_BADMODE){
    Log.Error("A call to the ChangeDisplaySettings() function failed in the " +
    "SetDisplay() function.",
    "The specified graphics mode (screen resolution: " + x + "*" +
    y + "; color depth: " + d + " bits per pixel) is not supported.",
    pmLower);
    }
    return res;
    }
    else {
    var dwLastError = Win32API.GetLastError();
    Log.Error("A call to the EnumDisplaySettings() failed in the " +
    "SetDisplay() function.",
    "System error code: " + dwLastError + " (" +
    + Utilities.SysErrorMessage(dwLastError) + ")", pmLower);
    return -1;
    }
    }

Wamboo's avatar
Wamboo
Community Hero

In my opinion, it's impossible to set it on TestComplete page.

 

It will be easier for you to change operating system settings.

anupamchampati's avatar
anupamchampati
Frequent Contributor
4 years ago

Attached the sample code to change the resolution and color depth , please let me know if you need any help in configuration. I tried it very long back in one of my projects so not tried it on the latest version.

function Test()
{
SetDisplay(800, 600, 32);
}

// The function changes the display settings:
// x - resolution
// y - resolution
// d - color depth
function SetDisplay(x, y, d)
{
var dm = Win32API.DEVMODE();
if(0 < Win32API.EnumDisplaySettings(0, -1, dm)) {
dm.dmPelsWidth = x;
dm.dmPelsHeight = y;
dm.dmBitsPerPel = d;

var res = Win32API.ChangeDisplaySettings(dm, 0);
if(res == DISP_CHANGE_BADMODE){
Log.Error("A call to the ChangeDisplaySettings() function failed in the " +
"SetDisplay() function.",
"The specified graphics mode (screen resolution: " + x + "*" +
y + "; color depth: " + d + " bits per pixel) is not supported.",
pmLower);
}
return res;
}
else {
var dwLastError = Win32API.GetLastError();
Log.Error("A call to the EnumDisplaySettings() failed in the " +
"SetDisplay() function.",
"System error code: " + dwLastError + " (" +
+ Utilities.SysErrorMessage(dwLastError) + ")", pmLower);
return -1;
}
}

  • sonya_m's avatar
    sonya_m
    SmartBear Alumni (Retired)
    4 years ago

    Thank you Wamboo, Anupam! 

     

    KateIV Have you tried the suggestions? Please share your results🙂