D2: Pixel aspect ratio

How do i obtain the pixel aspect ratio (its physical height vs width in millimeters) in Delphi 2
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try this, e.g.

const INCHES_PER_MILIMETER : Real  = 0.04;


var PixX, PixY : integer;
    PixPerMMX, PixPerMMY : real;
    AspectRatio : real;

PixX := GetDeviceCaps({Device Context}, LOGPIXELSX);
PixY := GetDeviceCaps({Device Context}, LOGPIXELSY);


AspectRatio := PixMMY/PixMMX;

{Device Context} e.g. Printer.Handle

From Delphi help :

The GetDeviceCaps function retrieves device-specific information about a specified device.

int GetDeviceCaps(

    HDC  hdc,      // device-context handle
    int  nIndex       // index of capability to query  


Identifies the device context.


Specifies the item to return. This parameter can be one of the following values: I recommend you should look at these!!!!

Have fun,
c.u. ZifNab;

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gk082597Author Commented:
It workt just fine. Thanks
Glad I could help.

Have fun,
c.u. BanZif;
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