HookAPI return value

c++ / delphi package - dll injection and api hooking
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HookAPI return value

Post by robertsun »

Hi all,
I wrote a piece of code with madHook to capture some system functions (for example: GetSaveFileNameW). But the call result of HookAPI is not true or false, but - 1. What's the matter? In addition, even if - 1 is returned, the capture is still normal, but it does not take effect immediately. It needs to wait more than ten seconds. Does anyone know why?
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Re: HookAPI return value

Post by madshi »

0 = FALSE; anything else = TRUE. That's how things have always worked. So -1 is TRUE.

Not taking effect immediately seems strange. Do you have more details about that?
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