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Member 14575556 wrote: How can I access controls of one class from another class.
Your question should probably be something like, "How can I access controls on one dialog from a separate dialog?" While it is not a good idea to do so directly (see "loose coupling"), a better way would be to send a message to the parent (the one that owns the control) dialog.
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles
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Thank you for the pointing me to the right direction. 
I'll read about "loose coupling" and to be honest I don't really get how to send message as of now, so I'll read about that too.
I've solve my problem in a naive way for now but i'll definitely follow your suggestions.
Thanks again.
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I have created a simple dialog application where it can perform crud operations but how I did it was I open a connection an do some operations inside most of the buttons as I'm still starting out as a beginner(noob).
What will be a good approach to separate all the database related operations in another class? or keeping as it is, is it a good practice?
I would like some suggestions.
Thank you.
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Since you're asking the question, you probably already know the answer.
The Master said, 'Am I indeed possessed of knowledge? I am not knowing. But if a mean person, who appears quite empty-like, ask anything of me, I set it forth from one end to the other, and exhaust it.'
― Confucian Analects
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I did something similar here. It may not be exactly what you are after, but it does give you another perspective, which could ultimately get you to your goal.
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles
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we want to decrease right of non client area in edit control and draw edge in that but wparam in nccalcsize return 1 only not 0 and lparam no give us rgrc0 or rgrc1 value to change it , if somebody try this please tell me its way and show the pictures to do like this
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Please edit your question and show the code you are using, and explain what happens when you run it.
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case win.WM_NCCALCSIZE:
if wParam > 0
{ params := (*win.NCCALCSIZE_PARAMS)(unsafe.Pointer(lParam))
params.Rgrc[0].Top=params.Rgrc[2].Top params.Rgrc[0].Left = params.Rgrc[0].Left + 1
params.Rgrc[0].Bottom=params.Rgrc[0].Bottom-1
params.Rgrc[0].Right=params.Rgrc[0].Right-10
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And where do you handle this message?
Member 11803607 wrote: if wParam > 0
{ params := (*win.NCCALCSIZE_PARAMS)(unsafe.Pointer(lParam))
What does this Quote: :=
mean?
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wm_nccalcsize Sent when use swp_framechanged in SetWindowPos ( Draw New Style )
i want to decrease the right of client rect to use drawEge in that space was made
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We already know from OP what you want to decrease...
However, we don't know how you are doing it. Richard MacCutchan asked you to post the code related to your problem, but you only have posted some irrelevant lines of your code.  
So sorry!  
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You imagine a window has Edit control i have to draw rectanle or Edge inside non client area of Edit Control so i have to decrease the width of clint area of edit i think and draw rectangle or Button Shape ( with drawedge api ) between windowrect.right and clientrect.right
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Sorry! i cannot imagine what you meant without seeing the code you implemented for this action! 
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how you Draw button inside edit control (t1he right side) ?
to do this i have to make some space in non client area , not client area if button draw in client area when user enter char in edit control , that area ( right side of edit control ) disappear and when move cursor outside again appears
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Member 11803607 wrote: how you Draw button inside edit control (t1he right side) ?
I don't. I never needed it to do myself.
Member 11803607 wrote: to do this i have to make some space in non client area not client area if button shape draw in client area when enter char in edit control that area was drawn button disappear and when move cursor outside again appears
What exactly are you going to achieve? What kind of "button" are you trying to insert inside an edit control and what for?
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i think i asked my question in wrong forum , if somebody work with api fubction maybe can help me .
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Member 11803607 wrote: i think i asked my question in wrong forum , if somebody work with api fubction maybe can help me .
Then, please, rewrite your question much more clear enough to to understand what you want, need, ... and where would be the best place to ask!
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I do not know what that is supposed to be, but that code will not even compile.
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Some variant of Qt?
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles
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Take a look at the afxeditbrowsectrl.cpp file. It contains the source to CMFCEditBrowseCtrl which (I think) does exactly what you want.
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles
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The problem is that the WM_NCCALCSIZE message with WPARAM 0, is only sent when the Window is first created. If you are subclassing the Window then you will never see that form of the message, because you cannot subclass until after it has been created.
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Cannot Put Gif If Can Show My Problem
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I have been investigating these messages and my opinion is that it will be very difficult to achieve what you want. In order to make it work you need to adjust the client size every time the Window moves or is resized. This means keeping track of the Window (or Control) in terms of size and position, and recalculating the values that you need. And, to be honest, Windows does not really want you to do it this way, so a rethink of your design would be a better idea.
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There is a CComboBox with three string in dropdown. I want to pop up a message if I didn't select anything from the drop down and press a button.
I tried checking using CComboBox variable like m_combo.IsEmpty() but it didn't work.
How can I check whether it is empty or not.
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Member 14575556 wrote: it didn't work.
That does not help to understand your problem. Please provide precise details of your code and exactly what results you get.
You appear to be building this project question by question in this forum. Time to take stock and do some internet searches, and reading of the online documentation for the MFC classes, many of which include sample code.
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