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Directx troubles

Started by ggs Jan 15, 2000 at 2:31 AM 3 replies 650+ views

Original Post

Jan 15, 2000 at 2:31 AM

Hi. i''m using Delphi5 and a translated version of DirectX6. I can successfully create a direct draw object, set the coop level and change the display mode. How ever when I when a add the code to dispose of the ddraw object, my program generates 3 errors when it finishes. Here is the code i''m using the release to object.


var ddraw_ptr : IDirectDraw;
...
// release the directdraw object
if (ddraw_ptr <> nil) then
   ddraw_ptr._Release;  // this line generates the errors

Am I doing this right? If not how can i fix it? I''m not too sure if this is the right method. Thanks for any help

crent

Jan 15, 2000 at 4:06 AM

Hi ggs.
I allready use the DX7 Headers, but I get the same error:

DirectXResult := DDrawObjekt._Release;
if DirectXResult <> DD_OK then //here is the error , but its unknown

//I do the following to kind of "release" it
pointer(DDrawObjekt) := nil;
DDrawObjekt := nil;

I don''t know how to fix this, does anyone ?
Maybe an error in the translated headers.

-crent-

ggs

Jan 15, 2000 at 6:33 AM

See my other topic. It has more info.
DDrawObjekt._Release returns a value defined BY delphi''s iunknown class. Thus the function ErrorString (its provided by the translated header) doesnt know what it is.

ggs

Jan 15, 2000 at 6:35 AM

STUPID slow internet connection.
See my other topic. It has more info.
DDrawObjekt._Release returns a value defined BY delphi''s iunknown class. Thus the function ErrorString (its provided by the translated header) doesnt know what it is.

crent

Jan 15, 2000 at 8:02 AM

If you call ._Release on all the Surfaces you created with the DirectDrawOject then the call to DirectDrawOject._Release will work without an error.

Just tested that. But I thought Surfaces will be automatical released when the main DirectDrawOject is released.

-crent-

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