[RESOLVED] whats exstyle???

[rohitnahar]

whats gwl_exstyle....
and
Private Const GWL_STYLE = (-16)
Private Const GWL_EXSTYLE = (-20)
Private Const WS_EX_LAYERED = &H80000 ???


am new to use of api in VB6.0
but they seem to b the most powerful tool in VB as front end....

using them for form transparency and other effects i came across the above mentioned things.....searched the forum and whole net but didnt find a clue why we use WS_EX_LAYERED = &H80000 ....
would be great if some one could list the whole list of such constants or tell where to learn from!!!

similarly even in MSDN for VB6.0 they have not explained the state on winsock...and working on winsock becomes so difficult if VBForum was not here.....how each state is achieved is very difficult to know if you dont know them before hand!

[rohitnahar]

whats the use of every bit in the 32 bit exstlye property?

[MartinLiss]

I've moved your thread to the proper forum.

[RobDog888]

For a listing of the API constants in an easy to use utility, download the API Viewer utility from allapi.net - http://www.allapi.net/agnet/apiviewer.shtml

MSDN will have every constant too.

[Harsh Gupta]

GWL_EXSTYLE helps in retrieving the offset value/s that specifies the extended window style of a form/window. This value can be combination/s of: [read the list of values of parameter dwExStyle]

[rohitnahar]

thanks administrator...
and all the other....
but my problem still remains the same....

msdn gives list of constant names....but not values....
and api viewer gives the values too....
but there r more possible values then these constants...which when used give very diffrent results in API's.....

this can give unlimited opertunity to VB6.0 developers just if v have the list....
eg...what do all the bits in the 32bit exstyle mean excatly.......
i have the list of limited constants....
but can i have all the possible constants???

[RobDog888]

No, there are not different or many more constants as the defined constants are Or'ed together to produce added values.

For ex. if constant WS_EX_CUSTOM1 = 1 and WS_EX_CUSTOM2 = 2 when you Or them together for a value designating the two separate propertys you get a value of 3. There will be no constant defined for 3 so Windows can reverse the process and determine that 3 = WS_EX_CUSTOM1 and WS_EX_CUSTOM2.

[rohitnahar]

that did make sense....