VB.NET disable fade-in for forms

Question

I want to disable the form fade-in effect for a window. I think I found the right function

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Private Sh         


        

Answer 1

The documentation for DWMWA_TRANSITIONS_FORCEDISABLED reads:

Use with DwmSetWindowAttribute. Enables or forcibly disables DWM transitions. The pvAttribute parameter points to a value of TRUE to disable transitions or FALSE to enable transitions.

The macros TRUE and FALSE are declared as:

#define FALSE 0
#define TRUE  1

So you need to pass 1 for the attrValue parameter.

The boolean type that Windows uses natively is BOOL. This is declared like this:

typedef int BOOL;

And since sizeof(int) is 4, the attrSize you need to pass is 4.