EQuestionAnswers.com Computer/Electronics Questions and Answers
C, C++, VC++, COM/DCOM, DLL and more
#Login #Sign up  Facebook Twitter TGoogle+
 

#Previous question #Index of VC++/WIN32/MFC Questions #Next question

Client Area

Total area of a window is divided in two parts client area and non-client area. Client area of a window is the square area of window below title bar where user can place child widgets.

Non-Client Area

Not client area is the area of a window where operating system constructs borders, title bar, menu bar, minimize/maximize button and exit button etc. Non client area is generally under control of operating system and depending on the themes selected by user it changes its appearance.

Client area and Non-Client Area

GetDC () API returns the device context of the client area of the window. Where as GetWindowDC () returns the total area of the window including non-client area. To draw only in client area we should use device context returned by GetDC(). To draw in client or non-client area we should use device context returned by GetWindowDC(). GetDC() and GetWindowDC() function reference has been listed below for your reference.

GetDC()

GetDC() function retrieves a handle to a display device context for the client area of a specified window or for the entire screen. You can use the returned handle in subsequent GDI functions to draw in the device context.
HDC GetDC(
  HWND hWnd   /* handle to a window */
);

GetWindowDC()

GetWindowDC() function retrieves the device context (DC) for the entire window, including title bar, menus, and scroll bars. A window device context permits painting anywhere in a window, because the origin of the device context is the upper-left corner of the window instead of the client area. GetWindowDC assigns default attributes to the window device context each time it retrieves the device context. Previous attributes are lost.
HDC GetWindowDC(
  HWND hWnd   /* handle of window */
);

You have viewed 1 page out of 109. Your VC++ learning is 0.00% complete. Login to check your learning progress.

 Vote 0

Similar topics related to this section

#Programming Windows, Fifth Edition (Developer Reference)
#Programming Applications for Microsoft Windows (Microsoft Programming Series)
#Programming Windows with MFC, Second Edition
#Visual C++ Programming
#Programming Microsoft Visual C++, Fifth Edition

* #1 webmaster Sun 27 Apr/2014 04:41:20(GMT)  Like 0 Unlike 0

Dear Users,

We are pleased to inform you that a forum/blog has been incorporated with www.mybestnotes.co.in. You are welcomed to add your comments, requests, codes, solutions and feedback to it. Please login(if already a member) or signup(for free) to avail to this facility.

Regards,
Webmaster

Your message goes here:

Name:Guest
Email:anonymous@unknown.com
My Post:*
Secutiry Code: ******  *
Preview this compose before posting this in discussion forum.
 
Note:
  1. Use [Sxx] code to show smiles. Example [S02]
  2. Use [URL ], example [URL http://www.google.com/]
  3. To display code or un formatted text use [CODE] [/CODE]. Example: [CODE] printf("Hello world"); [/CODE]
 [S01]   [S02]   [S03]   [S04]   [S05]   [S06]   [S07]   [S08] 
 [S09]   [S10]   [S11]   [S12]   [S13]   [S14]   [S15]   [S16] 
 [S17]   [S18]   [S19]   [S20]   [S21]   [S22]   [S23]   [S24] 

Note: Only members are allowed, * fields are mandatory.