Use of general controls for C language SDK programming -- listview

1. The listview control is one of the general controls. You must use the general controls in SDK programming.

Comctl32.dll must be included, so the header file commctrl. h must be included in the Code: comctl32.lib

Before using a universal control, call initcommoncontrols ();

Take the listview control as an example:

Initcommoncontrols ();

 

// Use listview as a subwindow

Createmediawex (0,
// Extended Style

Wc_listview,
// This is the macro defined by the system. It corresponds to wc_listview.
"Syslistview32"


"123 ",
// Window title

Ws_child | ws_visible | ws_clipsiblings | ws_clipchildren

| Lvs_report | lvs_autoarrange | lvs_showselalways


| Lvs_shareimagelists | lvs_singlesel,
// Window style
(The general control style is set here, and the extension style must be set separately)
0,


0,
// Window size

420,
// The width must be equal to the sum of the width of all columns. Otherwise, the empty column appears.

600,


Hwnd,
// Parent window handle

Null,
// Menu handle

Hinstance,
// Instance handle

Null
// Create parameters

);

// You can also use the subcontrol in the resource file of the dialog box.

Control "", idc_listview, "syslistview32", ws_border | ws_tabstop
| Lvs_report | lvs_autoarrange | lvs_showselalways | lvs_#imagelists | lvs_singlesel,
7,110,300,133

 

Ii. Related Function operations

Because it is SDK programming, the control operation is implemented by sending sendmessage () to the control.

Related Messages in listview are:

1. Set the foreground and background color of text in lvm_settextcolor and lvm_settextbkcolor messages.

2. lvm_getnextitem finds the selected row. corresponding to the listview_getnextitem macro, sendmessage is packaged as a function operation.

3. lvm_setcolumnwidth sets the column width, which corresponds to listview_setcolumnwidth.

4. lvm_setextendedlistviewstyle: lvs_ex_fullrowselect (select an entire line), lvs_ex_gridlines (network line), lvs_ex_checkboxes (select button), corresponding to listview_setextendedlistviewstyle

5. lvm_insertcolumn inserts a new column, corresponding to listview_insertcolumn

6. lvm_insertitem inserts a project (ROW), corresponding to listview_insertitem

7. Set the subitem lvm_setitem (each column in the row), corresponding to listview_setitem

8. The number of items obtained by lvm_getitemcount corresponds to listview_getitemcount.

9. The lvm_deleteitem is deleted, corresponding to listview_deleteitem.

There are still a lot of messages about the selected response that will not be listed. You can find them in the corresponding header file.

C:/program files/Microsoft sdks/Windows/v6.0a/include/commctrl. h

 

Iii. Related Structure

//
// Configure column attributes
//
Typedef struct _ lvcolumn
{

// Indicates which Members in the structure are valid, and lvcf_fmt = FMT is valid,
// Lvcf_subitem = isubitem valid, lvcf_text = psztext valid, lvcf_width = Lx valid
Uint mask;

// Column alignment
Int FMT;

// The initial width of the column. You can send the message lvm_setcolumnwidth later to change the column width.
Int CX;

// Column Title
Lptstr psztext;

// The size of the buffer to which psztext points
Int cchtextmax;

// The index value of the subitem associated with the column, starting from 0. You can send the lvm_getcolumn message when you want to query the column attributes,
// Specify the lvcf_subitem flag in the member variable imask,
// The list control returns the isubitem value set during insertion in isubitem.
Int isubitem;

// Specify the image index value in the image list associated with the column
Int iimage;

// Column number. 0 indicates the leftmost column.
Int iorder;

} Lvcolumn, far * lplvcolumn;

 

 

//
// Configuration item, add a project to it by sending the lvm_insertitem message to the List View
//
Typedef struct _ lvitem

{

// Describe which members are valid in the lvitem Structure
Uint mask;

// The index value of the project (which can be regarded as the row number) starts from 0.
Int iItem;

// The index value of the subitem (which can be regarded as the column number) starts from 0.
Int isubitem;

// Subitem status, whether there are focal points/High Brightness Display/selected (due to cut)/selected
// The index based on 1 is also included to indicate whether to use overlapping or status icons.
Uint state;

// Valid shielding bits in the status
Uint statemask;

// Name of the primary or subitem
Lptstr psztext;

// The buffer size pointed to by psztext
Int cchtextmax;

// Associate the index value of the specified image in the image list
Int iimage;

// The 32-bit parameter defined by the program, which is used when you sort projects.
// When you tell the List View to sort items, the List View compares items in pairs.
// It will pass the lparam value of the two projects to you, so that you can first list the two projects by comparing them.
Lparam;

// The unit that indicates the indent of the Image Position
Int iindent;

} Lvitem, far * lplvitem;