Use GDI + to create buttons that support more image formats

Derive a cbuttonex class
Reload oncreate to use the GDI + texture to the button

 

2. IntCbuttonex: oncreate (maid)
4. {
6. If(Cbutton: oncreate (lpcreatestruct) =-1)
8. Return-1;
12. Crect RC;
14. Getclientrect (& rc );
16. Cdc dc;
18. Using NamespaceGdiplus;// Required before using GDI +
20. Graphics graph (getdc ()-> m_hdc );
22. Image image (L"E: \ image related \ my work \ gdi?button.png");
24. Graph. drawimage (& image, RC. right-rc.left, RC. bottom-rc.top );
28. Return0;
30. }

Processing mousemove and mouseleave for better results

 

2. VoidCbuttonex: onmousemove (UintNflags, cpoint point)
4. {
6. Crect RC;
8. Getclientrect (& rc );
10. Cdc dc;
12. Using NamespaceGdiplus;// Required before using GDI +
14. Graphics graph (getdc ()-> m_hdc );
16. Image image (L"E: \ image related \ my work \ gdi?button2.png");
18. Graph. drawimage (& image, RC. right-rc.left, RC. bottom-rc.top );
22. Trackmouseevent event;
24. Event. cbsize =Sizeof(Event );
26. Event. dwflags = tme_leave;
28. Event. dwhovertime = 0;
30. Event. hwndtrack = getsafehwnd ();
32. Verify (_ trackmouseevent (& event ));
34. Cbutton: onmousemove (nflags, point );
36. }
38. IntCbuttonex: oncreate (maid)
40. {
42. If(Cbutton: oncreate (lpcreatestruct) =-1)
44. Return-1;
48. Crect RC;
50. Getclientrect (& rc );
52. Cdc dc;
54. Using NamespaceGdiplus;// Required before using GDI +
56. Graphics graph (getdc ()-> m_hdc );
58. Image image (L"E: \ image related \ my work \ gdi?button.png");
60. Graph. drawimage (& image, RC. right-rc.left, RC. bottom-rc.top );
64. Return0;
66. }
68. LresultCbuttonex: onmouseleave (WparamWparam,LparamLparam)
70. {
72. Crect RC;
74. Getclientrect (& rc );
76. Cdc dc;
78. Using NamespaceGdiplus;// Required before using GDI +
80. Graphics graph (getdc ()-> m_hdc );
82. Image image (L"E: \ image related \ my work \ gdi?button.png");
84. Graph. drawimage (& image, RC. right-rc.left, RC. bottom-rc.top );
86. Return1;
88. }

 

The mouseleave function must manually add a message response.

 

1. Afx_msgLresultOnmouseleave (WparamWparam,LparamLparam );

 

1. On_message (wm_mouseleave, onmouseleave)

 

 

 

If you want to use the buttons directly added by VC to set the style as the owner

The bs_ownerdraw type must be added for dynamic creation.

Reload the drawitem Function

 

2. VoidCbuttonex: drawitem (lpdrawitemstruct)
4. {
6.  // Todo: add your code to draw the specified item
8. Crect RC;
10. Getclientrect (& rc );
12. Cdc dc;
14.  Using NamespaceGdiplus;// Required before using GDI +
16. Graphics graph (getdc ()-> m_hdc );
18. Uses_conversion;// Added # include "atlbase. H" to the complicated definition header file"
20.  Wchar_t* Tempboardpath = a2w (m_resoucepath );// Convert cstring to wchar_t
22.  If(M_resoucepath.isempty ())
24. {
26. Image image (L"E: \ image related \ my work \ GDI + button crystal 1.png");
28. Graph. drawimage (& image, RC. right-rc.left, RC. bottom-rc.top );
30. }
32.  Else
34. {
36. Image image (tempboardpath );
38. Graph. drawimage (& image, RC. right-rc.left, RC. bottom-rc.top );
40. }
42. }

Add a function to receive external resources.

1. VoidCbuttonex: setresoucepath (cstring path)
2. {
3. M_resoucepath = path;
4. }

Initialize the DLG class

Use

2. M_btnex.setresoucepath ("E: \ image related \ my work \ recycle_bin_blue2.ico");
4. M_btnex2.setresoucepath ("E: \ image related \ my work \ recycle_bin_full.ico");
8. M_btnex.create ("", Bs_ownerdraw | ws_visible | ws_child, crect (0, 50, 50 ),This, 11111 );
12. M_btnex2.create ("", Bs_ownerdraw | ws_visible | ws_child, crect (50,100 ),This, 11112 );

 

OK. Create one. Try it ~~

The one in the upper left corner is dynamically created during initialization.

In the middle is the control added with VC

 

1

After hovering over the mouse, you can switch to an image display.