user32.dll - messages

[Martin Priebe]

Hi,

i use visual studio 2005 with c#

i try to to locate windows and controls in the window.

when i use the function GetClassName (located in user32.dll) i get the
Class.
Button, ComboBox or Edit ...

But i have the problem with checkbox and radio buttons.
These are Buttons too.

How can i read the kind of button ?

When I use Spy++ i see the styles of the controls.
Maybe i could use the style to figure it out.

But how ?

How can i get the style of a control ?
The windows i read out are not build from my application !

thx a lot
Martin

[Martin Priebe]

Hi again,

i tried to use GetWindowLong.

but with this function i get a parameter. (type - long)

but i don´t know what can i do with this parameter

[Willy Denoyette [MVP]]

"Martin Priebe" <ma***********@hermos.comwrote in message
news:On**************@TK2MSFTNGP04.phx.gbl...

>
Hi,

ok. i get the return value 8403211231 for example.
what does that means ?

i don´t understand the difference between int and style ?

when i get the return value 8403211231, how can i see that this style is
for a checkbox or for a pushbutton ?

There must be something wrong with your return value declaration, 8403211231
is not a valid int32 value.
Anyway, the return value need to be masked out to get the valid button
styles from it,

int BS_TYPEMASK = 0x0000000F;
int GWL_STYLE = -16;
enum ButtonStyle
{
BS_CHECKBOX 0x2;
BS_AUTOCHECKBOX = 0x3;
....
}

int buttonStyle = GetWindowLong (hwndControl, GWL_STYLE) & BS_TYPEMASK;
Use as follows:
If (buttonStyle == (int)ButtonStyle.BS_AUTOCHECKBOX)
.....
If (buttonStyle == (int)ButtonStyle.BS_CHECKBOX)
Please check the Platform sdk docs on MSDN for the other possible button
style BS_**

Willy.