window creation questions!!

[Rainstorm]

I've successfully manged to create windows & play with them slightly.. but there are some things I don't understand. - from the SDK..

The WinMain function is called by the system as the initial entry point for a Windows-based application

In my windows code I use invokee & call the WinMain function,......I can't see how the System is calling it....Can someone explain this to me ?

Another question..From the SDK

hWndParent
[in] Handle to the parent or owner window of the window being created. To create a child window or an owned window, supply a valid window handle. This parameter is optional for pop-up windows

In my code this is the first window am creating.. so it has no Parent window...therefore no handle for a parent window, so what do i put here ? (in my code I've supplied the instance module for a value & it still works fine......in the generic example I just checked & a NULL  is supplied there..) Can someone explain this to me a bit ?

Thank-you

Rainstorm

[Tedd]

I've successfully manged to create windows & play with them slightly.. but there are some things I don't understand. - from the SDK..

The WinMain function is called by the system as the initial entry point for a Windows-based application

In my windows code I use invokee & call the WinMain function,......I can't see how the System is calling it....Can someone explain this to me ?

That refers to the runtime system (not the operating system) - it's aimed at C/C++ programmers - you don't need to worry about it. When you compile a C program, a lot of other 'house-keeping' functions are included to deal with the command-line and environment, when that's finished it calls your 'main' function. In asm we do it ourselves without the runtime.

Another question..From the SDK

hWndParent
[in] Handle to the parent or owner window of the window being created. To create a child window or an owned window, supply a valid window handle. This parameter is optional for pop-up windows

In my code this is the first window am creating.. so it has no Parent window...therefore no handle for a parent window, so what do i put here ? (in my code I've supplied the instance module for a value & it still works fine......in the generic example I just checked & a NULL  is supplied there..) Can someone explain this to me a bit ?

This is for 'CreateWindow' ? -- For your top-level window just supply NULL. It's meant for child-windows, for which you provide the handle to the parent/owner window that the child (e.g. button, edit, etc) appears on (for where to send notifications.)

[Rainstorm]

edd wrote

That refers to the runtime system (not the operating system) - it's aimed at C/C++ programmers - you don't need to worry about it. When you compile a C program, a lot of other 'house-keeping' functions are included to deal with the command-line and environment, when that's finished it calls your 'main' function. In asm we do it ourselves without the runtime.

tedd, thanks a lot..! .....*whew*.. i was racking my head on that one lol..thinking that the winmain must be working in some weird way etc. - so it is what it looks like,..the winmain is called using the invoke in my code before the function.

This is for 'CreateWindow' ? -- For your top-level window just supply NULL.

yes its for 'CreateWindow' 

t y

Rainstorm.

[Rainstorm]

Hi.
,.. didn't wanna start a seperate thread for this question.

What's the concept surrounding things like     wxyz.h in the SDK   ....is the concept similar to the PROTO (prototype)  concept in assembly ?

thanks

Rainstorm.

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[Vortex]

Hi Rainstorm,

Yes, C header files with the .h extension have the same functionality with the .inc files used with assembly. The .h files are containing function prototypes, equates and structure definitions. The master MASM include file windows.inc and the other include files like kernel32.inc are providing the same services.

[Rainstorm]

many thanks vortex..

Rainstorm.

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