How to use getinsertmark

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In my requirement i have to get the current insert position using below method

C++

GetInsertMark(LPLVINSERTMARK lvim) const

could you please tell me how to use this method

What I have tried:

 LPLVINSERTMARK* lvim =NULL;
    if (m_probelist_ctl.GetInsertMark(lvim)
{

int nitem = = lvim->iItem
}
but i am gettimg compile error here ,
could you pleae tell me how to use GetInsertMark

Posted 18-Jul-17 2:53am

Member 13089825

Updated 18-Jul-17 4:10am

Afzaal Ahmad Zeeshan

v2

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3 solutions

Solution 1

The compiler messages should be enough to help you.

C++

LPLVINSERTMARK* lvim =NULL; //<-- LPLVINSERTMARK is already a pointer, you do not need more indirection
    if (m_probelist_ctl.GetInsertMark(lvim) //<-- close parenthesis missing here
{
 
int nitem = = lvim->iItem //<-- what is this statement supposed to be?
}

Posted 18-Jul-17 3:02am

Richard MacCutchan

Solution 2

hi thank you for reply,
when i give below one its trowing error like argument type of LPLVINSERTMARK ** is incompatiable with paramater type of LPLVINSERTMARK
if (m_probelist_ctl.GetInsertMark(lvim)

int nitem = = lvim->iItem //<-- what is this statement supposed to be?

storing the current position of insert marker

Posted 18-Jul-17 3:07am

Member 13089825

Comments

Richard MacCutchan 18-Jul-17 9:44am

No it is not, you have two = signs which is a test for equality. You really need to desk check your code more carefully.

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Jochen Arndt · Accepted Answer · 2017-07-18T03:09:00

Solution 3

You have to pass a pointer to an LVINSERTMARK structure (which is an LPLVINSERTMARK; the LP indicates that it is a pointer):

// Structure as local variable
LVINSERTMARK lvim;
// [EDIT]
// Must set the cbSize member
lvim.cbSize = sizeof(LVINSERTMARK);
// [/EDIT]
// Pass the address of the structure
if (m_probelist_ctl.GetInsertMark(&lvim))
{
    // Access structure element
    int nitem = lvim.iItem
}

Posted 18-Jul-17 3:09am

Jochen Arndt

Updated 18-Jul-17 3:22am

v3

Comments

Member 13089825 18-Jul-17 9:16am

hi thank you its compiling successfully now but GetInsertMark(&lvim)is returning false alwyas.
im doing is im deleting an item in list and after that im calling the GetInsertMark(&lvim) but its returning false alwyas

Jochen Arndt 18-Jul-17 9:24am

See my updated answer.
The structure must be initialised.
I thought that this is done by the GetInsertMark() but it has to be done.

Member 13089825 18-Jul-17 9:30am

now also returning false and lvim have the below valuse
cbSize = 16
dwFlags = 2147483648
iItem = -1
dwReserved = 3435973836
do i need to call the setinsertmark before call the getinsertmark?

Jochen Arndt 18-Jul-17 10:10am

The structure member values are undefined (random) when the call is not successful.

A possible reasons for failures are described at https://msdn.microsoft.com/en-us/library/windows/desktop/bb774945(v=vs.85).aspx (the function is just sending that message to the list control)

"An insertion point can appear only if the list-view control is in icon view, small icon view, or tile view, and is not in group-view mode."

and

"Note To use this message, you must provide a manifest specifying Comclt32.dll version 6.0. For more information on manifests, see Enabling Visual Styles."

Member 13089825 19-Jul-17 3:26am

"An insertion point can appear only if the list-view control is in icon view, small icon view, or tile view, and is not in group-view mode"
HI even when i use iconview also getinsertmark is returning false.

Jochen Arndt 19-Jul-17 3:33am

Maybe there is actually no insert point.
Try setting all other lvim members to zero (dwFlags, iItem, dwReserved) and check iItem after the call. If that is -1, there is no insert point.

Member 13089825 19-Jul-17 3:37am

i have added like this
lvim.cbSize = sizeof(lvim); // // Must set the cbSize member
//memset(lvim.cbSize, 0, sizeof(LVINSERTMARK));
lvim.iItem = 0;
lvim.dwFlags = 0;
lvim.dwReserved = 0;
if (m_probelist_ctl.GetInsertMark(&lvim)) //Pass the address of the structure
{
// Access structure element
int nitem = lvim.iItem;
}
but still its showing -1

Jochen Arndt 19-Jul-17 3:42am

You have set iItem to zero but it is now -1. That tells you that there is actually no insert point defined. You might set one using SetInsertMark().