code_app/modules/twain_user/HGTwain.cpp

#include "HGTwain.h"
#include "HGTwainImpl.hpp"

HGResult HGAPI HGTwain_CreateDSM(HWND hwnd, HGTwainDSM* dsm)
{
	if (NULL == dsm)
	{
		return HGBASE_ERR_INVALIDARG;
	}

	HGTwainDSMImpl* twainDSMImpl = new HGTwainDSMImpl;
	HGResult ret = twainDSMImpl->Create(hwnd);
	if (HGBASE_ERR_OK != ret)
	{
		delete twainDSMImpl;
		return ret;
	}

	*dsm = (HGTwainDSM)twainDSMImpl;
	return HGBASE_ERR_OK;
}

HGResult HGAPI HGTwain_DestroyDSM(HGTwainDSM dsm)
{
	if (NULL == dsm)
	{
		return HGBASE_ERR_INVALIDARG;
	}

	HGTwainDSMImpl* twainDSMImpl = (HGTwainDSMImpl*)dsm;
	HGResult ret = twainDSMImpl->Destroy();
	if (HGBASE_ERR_OK != ret)
	{
		return ret;
	}

	delete twainDSMImpl;
	return HGBASE_ERR_OK;
}

HGResult HGAPI HGTwain_GetDSCount(HGTwainDSM dsm, HGUInt* count)
{
	if (NULL == dsm)
	{
		return HGBASE_ERR_INVALIDARG;
	}

	HGTwainDSMImpl* twainDSMImpl = (HGTwainDSMImpl*)dsm;
	return twainDSMImpl->GetDSCount(count);
}

HGResult HGAPI HGTwain_GetDSNameWithIndex(HGTwainDSM dsm, HGUInt index, HGChar* name, HGUInt maxLen)
{
	if (NULL == dsm)
	{
		return HGBASE_ERR_INVALIDARG;
	}

	HGTwainDSMImpl* twainDSMImpl = (HGTwainDSMImpl*)dsm;
	return twainDSMImpl->GetDSName(index, name, maxLen);
}

HGResult HGAPI HGTwain_OpenDS(HGTwainDSM dsm, HGUInt index, HGTwainDS* ds)
{
	if (NULL == dsm)
	{
		return HGBASE_ERR_INVALIDARG;
	}

	HGTwainDSMImpl* twainDSMImpl = (HGTwainDSMImpl*)dsm;
	class HGTwainDSImpl* dsImpl = NULL;
	HGResult ret = twainDSMImpl->OpenDS(index, &dsImpl);
	if (HGBASE_ERR_OK != ret)
	{
		return ret;
	}

	*ds = (HGTwainDS)dsImpl;
	return HGBASE_ERR_OK;
}

HGResult HGAPI HGTwain_OpenDefaultDS(HGTwainDSM dsm, HGTwainDS* ds)
{
	if (NULL == dsm)
	{
		return HGBASE_ERR_INVALIDARG;
	}

	HGTwainDSMImpl* twainDSMImpl = (HGTwainDSMImpl*)dsm;
	class HGTwainDSImpl* dsImpl = NULL;
	HGResult ret = twainDSMImpl->OpenDefaultDS(&dsImpl);
	if (HGBASE_ERR_OK != ret)
	{
		return ret;
	}

	*ds = (HGTwainDS)dsImpl;
	return HGBASE_ERR_OK;
}

HGResult HGAPI HGTwain_OpenSelectedDS(HGTwainDSM dsm, HGTwainDS* ds)
{
	if (NULL == dsm)
	{
		return HGBASE_ERR_INVALIDARG;
	}

	HGTwainDSMImpl* twainDSMImpl = (HGTwainDSMImpl*)dsm;
	class HGTwainDSImpl* dsImpl = NULL;
	HGResult ret = twainDSMImpl->OpenSelectedDS(&dsImpl);
	if (HGBASE_ERR_OK != ret)
	{
		return ret;
	}

	*ds = (HGTwainDS)dsImpl;
	return HGBASE_ERR_OK;
}

HGResult HGAPI HGTwain_OpenSelectedDSEx(HGTwainDSM dsm, HGTwainDS* ds)
{
    if (NULL == dsm)
    {
        return HGBASE_ERR_INVALIDARG;
    }

    HGTwainDSMImpl* twainDSMImpl = (HGTwainDSMImpl*)dsm;
    class HGTwainDSImpl* dsImpl = NULL;
    HGResult ret = twainDSMImpl->OpenSelectedDSEx(&dsImpl);
    if (HGBASE_ERR_OK != ret)
    {
        return ret;
    }

    *ds = (HGTwainDS)dsImpl;
    return HGBASE_ERR_OK;
}

HGResult HGAPI HGTwain_CloseDS(HGTwainDS ds)
{
	if (NULL == ds)
	{
		return HGBASE_ERR_INVALIDARG;
	}

	HGTwainDSImpl* twainDSImpl = (HGTwainDSImpl*)ds;
	return twainDSImpl->Close();
}

HGResult HGAPI HGTwain_GetDSName(HGTwainDS ds, HGChar* name, HGUInt maxLen)
{
	if (NULL == ds)
	{
		return HGBASE_ERR_INVALIDARG;
	}

	HGTwainDSImpl* twainDSImpl = (HGTwainDSImpl*)ds;
	return twainDSImpl->GetName(name, maxLen);
}

HGResult HGAPI HGTwain_GetDSDeviceCustomInfo(HGTwainDS ds, HGTwainDeviceCustomInfo *info)
{
    if (NULL == ds)
    {
        return HGBASE_ERR_INVALIDARG;
    }

    HGTwainDSImpl* twainDSImpl = (HGTwainDSImpl*)ds;
    return twainDSImpl->GetDeviceCustomInfo(info);
}

HGResult HGAPI HGTwain_EnableDSUIOnly(HGTwainDS ds, HWND parent, HGDSCloseReqFunc eventFunc, HGPointer eventParam)
{
	if (NULL == ds)
	{
		return HGBASE_ERR_INVALIDARG;
	}

	HGTwainDSImpl* twainDSImpl = (HGTwainDSImpl*)ds;
	return twainDSImpl->EnableUIOnly(parent, eventFunc, eventParam);
}

HGResult HGAPI HGTwain_EnableDS(HGTwainDS ds, HGBool showUI, HWND parent, HGDSCloseReqFunc eventFunc, HGPointer eventParam,
	HGDSImageFunc imageFunc, HGPointer imageParam)
{
	if (NULL == ds)
	{
		return HGBASE_ERR_INVALIDARG;
	}

	HGTwainDSImpl* twainDSImpl = (HGTwainDSImpl*)ds;
	return twainDSImpl->Enable(showUI, parent, eventFunc, eventParam, imageFunc, imageParam);
}

HGResult HGAPI HGTwain_DisableDS(HGTwainDS ds)
{
	if (NULL == ds)
	{
		return HGBASE_ERR_INVALIDARG;
	}

	HGTwainDSImpl* twainDSImpl = (HGTwainDSImpl*)ds;
	return twainDSImpl->Disable();
}