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SetSystemMemoryDivision (coredll)
 

coredll is for smart devices, not desktop Windows. Therefore, this information only applies to code using the .NET Compact Framework. To see if information for SetSystemMemoryDivision in other DLLs exists, click on Find References to the right.

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Summary

C# Signature:

[DllImport("coredll.dll", SetLastError=true)]
static extern uint SetSystemMemoryDivision(uint dwStorePages);

VB Signature:

Declare Function SetSystemMemoryDivision Lib "coredll.dll" (dwStorePages As UInt32) As UInt32

User-Defined Types:

None.

Alternative Managed API:

Do you know one? Please contribute it!

Notes:

This function takes one argument - size of storage in memory pages. It returns result code that could be:

0 - SYSMEM_CHANGED: Memory division changed successfully
1 - SYSMEM_MUSTREBOOT: Need to reboot to accept memory division changes
2 - SYSMEM_REBOOTPENDING: Cannot change memory division because the system should be rebooted after the previous call before
3 - SYSMEM_FAILED: Change failed. Use GetLastError to get more details.

Tips & Tricks:

Please add some!

Sample Code:

namespace MemGetSet

{

    public partial class Form1 : Form
    {
    [DllImport("coredll", SetLastError = true)]
    private static extern int GetSystemMemoryDivision(ref int storage, ref int ram, ref int pageSize);

    [DllImport("coredll", SetLastError = true)]
    private static extern int SetSystemMemoryDivision(int pages);

    public Form1()
    {
        InitializeComponent();
    }

    private void btnGet_Click(object sender, EventArgs e)
    {
        int storage=0;
        int ram=0;
        int pageSize=0;

        int result = GetSystemMemoryDivision( ref storage, ref ram, ref pageSize);

        edtPages.Text = string.Format("Get Mem result {0} storage {1} ram {2} pagesize {3}", result, storage, ram, pageSize);
    }

    private void btnSet_Click(object sender, EventArgs e)
    {
        int result = SetSystemMemoryDivision(int.Parse(edtPages.Text));

        edtPages.Text = string.Format("Set Mem result {0} ", result);
    }
    }

}

Documentation

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